The Tyne is a river in northeast England, flowing through the city of Newcastle upon Tyne and into the North Sea. It is approximately 73 miles long and serves as a natural boundary between the counties of Northumberland and Tyne and Wear. The river is known for its historical significance and has been a vital trade route since ancient times. The Tyne is also famous for its iconic bridges, including the Tyne Bridge and the Gateshead Millennium Bridge. These structures connect the cities of Newcastle and Gateshead, enhancing transportation and tourism in the region. The river's banks are lined with cultural attractions, parks, and waterfront developments.